diff --git a/Overlay-image-configuration.md b/Overlay-image-configuration.md
index 41f7121..5092a9f 100644
--- a/Overlay-image-configuration.md
+++ b/Overlay-image-configuration.md
@@ -87,10 +87,19 @@ It is possible to use individual overlays per button. The given image will be di
     overlay0_desc0_overlay = button.png
 
 #### Let buttons light up when they are pressed
-When using individial overlays per button it will make sense to have buttons light up when they are pressed. To do this, the alpha value will be modulated.
+When using individial overlays per button it will make sense to have buttons light up when they are pressed. To do this, the alpha value per-button will be multiplied by a factor.
+
+    overlay0_desc0_alpha_mod = 2.0 # Alpha is multiplied 2x when pressed.
+
+To set a default across all descriptors for an overlay, you can do so:
+
+    overlay0_alpha_mod = 2.0
 
 #### Let buttons have bigger hitbox when they are pressed
-TODO:
+When pressed, you can make the hitboxes larger while the button is pressed:
+
+    overlay0_desc0_range_mod = 1.5 # For the particular descriptor
+    overlay0_range_mod = 1.5 # Default for all descriptors
 
 ### Triggering multiple buttons with one desc